Station information
- Integrated Surface Dataset (ISD) station ID: 997255
- Country: US
- Latitude: 41.73
- Longitude: -87.54
High Temperatures
On June 21 in 9087044 - CALUMET IL the average high temperature is 81.0 °F (27.2 °C). The lowest recored high temperature was 64.2 °F (17.9 °C) in 2019 and the highest recored high temperature was 95.5 °F (35.3 °C) in 2022. The high temperature is usually* between 75.8 °F (24.4 °C) and 86.2 °F (30.1 °C). About a quarter of the time, the high temperature is less than 75.8 °F (24.4 °C), and another quarter of the time, the high temperature is greater than and 86.2 °F (30.1 °C). About 95% of the time, the high temperature has been between 65.9 °F (18.9 °C) and 96.1 °F (35.6 °C).
Low Temperatures
On June 21 in 9087044 - CALUMET IL the average low temperature is 66.4 °F (19.1 °C). The lowest recored low temperature was 53.4 °F (11.9 °C) in 2019 and the lowest recored low temperature was 75.9 °F (24.4 °C) in 2025. The low temperature is usually* between 62.8 °F (17.1 °C) and 70.0 °F (21.1 °C). About a quarter of the time, the low temperature is less than 62.8 °F (17.1 °C), and another quarter of the time, the low temperature is greater than and 70.0 °F (21.1 °C). About 95% of the time, the low temperature has been between 56.0 °F (13.3 °C) and 76.9 °F (25.0 °C).
Frost
On June 21 in 9087044 - CALUMET IL expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2025